Herbicide label

TripleFLEX II Herbicide Label

TripleFLEX II (EPA 524-614) is a Group 2, 4, and 15 acetochlor, clopyralid, and flumetsulam herbicide labeled for 3 crops. The label lists 64 controlled weeds, plus partial-control, suppression, and partner-control categories.

TripleFLEX II label facts

Crops on the TripleFLEX II label

TripleFLEX II is labeled for these 3 crops and uses, per the EPA label.

Weeds on the TripleFLEX II label

The TripleFLEX II label names 64 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.

Controls

full control64
  • barnyardgrass, common
  • crabgrass
  • crowfootgrass
  • cupgrass, prairie
  • cupgrass, southwestern
  • cupgrass, woolly
  • foxtail, bristly
  • foxtail, giant
  • foxtail, green
  • foxtail, robust (purple, white)
  • foxtail, yellow
  • goosegrass
  • johnsongrass, seedling
  • foxtail, millet
  • millet, wild-proso
  • nutsedge, yellow
  • panicum, browntop
  • panicum, fall
  • panicum, texas
  • red rice
  • sandbur, field
  • shattercane
  • signalgrass, broadleaf
  • sprangletop, red
  • witchgrass
  • amaranth, palmer
  • beggarweed, florida
  • buckwheat, wild
  • carpetweed
  • chickweed, common
  • clover, red
  • cocklebur, common
  • galinsoga
  • henbit
  • horseweed
  • jimsonweed
  • kochia
  • ladysthumb
  • lambsquarters, common
  • mallow, venice
  • morningglory, ivyleaf
  • morningglory, tall
  • mustard, wild
  • nightshade, black
  • pigweed, redroot
  • pigweed, smooth
  • poinsettia, wild
  • puncturevine
  • purslane, common
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • smartweed, pennsylvania
  • spurge, nodding
  • spurge, prostrate
  • spurge, spotted
  • sunflower, annual
  • thistle, canada
  • velvetleaf
  • waterhemp, common
  • wormwood, biennial

TripleFLEX II rates and plant-back

The label answers both with a table, not a single number. Here is what drives each answer.

Application rate

Your rate depends on your crop.

Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.

Plant-back and rotation

Your interval depends on your application rate and the rotational crop.

Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.

TripleFLEX II FAQ

What weeds does TripleFLEX II control?

The TripleFLEX II label names 64 weeds, including common barnyardgrass, crabgrass, crowfootgrass, prairie cupgrass, southwestern cupgrass, and woolly cupgrass. Control varies by crop, rate, and timing.

What crops is TripleFLEX II labeled for?

TripleFLEX II is labeled for 3 crops and uses, including field corn, corn silage, and seed corn.

What is the active ingredient in TripleFLEX II? Is it a generic?

TripleFLEX II's active ingredient is acetochlor, clopyralid, and flumetsulam (MOA Group 2, 4, and 15). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Sources

Last updated 2026-09-30.